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| 3.3V DUAL TTL-to-DIFFERENTIAL PECL TRANSLATOR FEATURES s s s s s s s 3.3V power supply 300ps typical propagation delay <100ps output-to-output skew Differential PECL outputs PNP TTL inputs for minimal loading Flow-through pinouts Available in 8-pin SOIC package SY10ELT22L SY100ELT22L DESCRIPTION The SY10/100ELT22L are dual TTL-to-differential PECL translators with +3.3V power supply. Because PECL (Positive ECL) levels are used, only +3.3V and ground are required. The small outline 8-lead SOIC package and the low skew, dual gate design of the ELT22L makes it ideal for applications which require the tranlation of a clock and a data signal. The ELT22L is available in both ECL standards: the 10ELT is compatible with positive ECL 10H logic levels, while the 100ELT is compatible with positive ECL 100K logic levels. PIN CONFIGURATION/BLOCK DIAGRAM PIN NAMES Pin Function Differential PECL Outputs TTL Inputs +3.3V Supply Ground Q0 Q0 Q1 Q1 1 2 PECL 3 4 TTL 8 7 6 5 VCC D0 D1 GND Qn Dn VCC GND SOIC TOP VIEW Rev.: H Amendment: /0 1 Issue Date: March, 1999 Micrel SY10ELT22L SY100ELT22L ABSOLUTE MAXIMUM RATINGS(1) Symbol VCC VI II IOUT Paramter Power Supply Voltage TTL Input Voltage TTL Input Current PECL Output Current -- Continuous -- Surge Storage Temperature Operating Temperature Value -0.5 to +7.0 -0.5 to VCC -30 to +5.0 50 100 -65 to +150 -40 to +85 C C Unit V V mA mA TRUTH TABLE D H L Open Q H L H Q L H L Tstore Tamb NOTE: 1. Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded. This is a stress rating only and functional operation is not implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to ABSOLUTE MAXIMUM RATlNG conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS(1) VCC = +3.0V to +3.8V TA = -40C Symbol ICC Parameter Power Supply Current Min. Max. -- 25 TA = 0C -- 25 TA = +25C -- 25 TA = +85C Min. Max. Unit -- 25 mA Condition -- Min. Max. Min. Max. NOTE: 1. Parametric values specified at: 3 volt Power Supply Range 10/100ELT22L Series: +3.0V to +3.8V. AC ELECTRICAL CHARACTERISTICS(1) VCC = +3.0V to +3.8V TA = -40C Symbol tPLH tPHL tr tf tskpp tskew Parameter Propagation Delay to Output D, ENECL/ENTTL Output Rise/Fall Time 20% to 80% Part-to-Part Skew(2) Within-Device Skew(2,3) TA = 0C TA = +25C TA = +85C Condition 50 to VCC - 2.0V 50 to VCC - 2.0V 50 to VCC - 2.0V 50 to VCC - 2.0V Min. Max. Min. Max. Min. Max. Min. Max. Unit 100 200 -- -- 600 500 500 100 100 200 -- -- 600 500 500 100 100 200 -- -- 600 500 500 100 100 200 -- -- 600 500 500 100 ps ps ps ps NOTES: 1. Parametric values specified at: 3 volt Power Supply Range 2. Guaranteed, but not tested. 3. Same transition @common VCC levels. 10/100ELT22L Series: +3.0V to +3.8V. 2 Micrel SY10ELT22L SY100ELT22L TTL DC ELECTRICAL CHARACTERISTICS(1) VCC = +3.0V to +3.8V TA = -40C Symbol VIH VIL IIH IIL VIK Parameter Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current Input Clamp Voltage Min. 2.0 -- -- -- -- -- Max. -- 0.8 20 100 -0.2 -1.2 TA = 0C Min. 2.0 -- -- -- -- -- Max. -- 0.8 20 100 -0.2 -1.2 TA = +25C Min. 2.0 -- -- -- -- -- Max. -- 0.8 20 100 -0.2 -1.2 TA = +85C Min. 2.0 -- -- -- -- -- Max. -- 0.8 20 100 -0.2 -1.2 Unit V V A mA V Condition -- -- VIN = 2.7V VIN = VCC VIN = 0.5V IIN = -18mA NOTE: 1. Parametric values specified at: 3 volt Power Supply Range 10/100ELT22L Series: +3.0V to +3.8V. PECL DC ELECTRICAL CHARACTERISTICS(1) VCC = VCC (Min.) to VCC (Max.) TA = -40C Symbol VOH Parameter Output HIGH Voltage(2) 10ELT 2220 100ELT 2220 VOL Output LOW Voltage(2) 10ELT 1350 100ELT 1470 -- -- -- -- 2410 2420 1650 1750 2280 2275 1350 1490 -- -- -- -- 2460 2420 1670 1680 2320 2275 1350 1490 -- -- -- -- 2490 2420 1670 1680 2390 2275 1350 1490 -- -- -- -- 2580 2420 mV 1705 1680 Min. Typ. Max. Min. TA = 0C Typ. Max. TA = +25C Min. Typ. Max. TA = +85C Min. Typ. Max. Unit mV NOTES: 1. Parametric values specified at: 3 volt Power Supply Range 10/100ELT22L Series: +3.0V to +3.8V. 2. These values are for VCC = 3.3V. Level Specifications will vary 1:1 with VCC. PRODUCT ORDERING CODE Ordering Code SY10ELT22LZC SY10ELT22LZCTR SY100ELT22LZC SY100ELT22LZCTR Package Type Z8-1 Z8-1 Z8-1 Z8-1 Operating Range Commercial Commercial Commercial Commercial VCC Range (V) +3.0 to +3.8 +3.0 to +3.8 +3.0 to +3.8 +3.0 to +3.8 3 Micrel SY10ELT22L SY100ELT22L 8 LEAD SOIC .150" WIDE (Z8-1) Rev. 03 MICREL-SYNERGY TEL 3250 SCOTT BOULEVARD SANTA CLARA CA 95054 USA FAX + 1 (408) 980-9191 + 1 (408) 914-7878 WEB http://www.micrel.com This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. (c) 2000 Micrel Incorporated 4 |
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